Adjustable axle-nut.



L. BECK.

ADJUSTABLE AXLB NUT. APPLICATION FILED HAI 5, 1911.

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'UNEF t om@ ADJUSTABLE AXLETNUT.

Application med May 5, 1911. serial No. 625,189.

To all whom it may concern.'

Be itknown that I, LARKIN BECK, a citizen ot' the United States, and a resident of Kirtland, in the county of San Juan and Territory ofl New Mexico, have invented a new and Improved Adjustable Axle-Nut, of which the following is a full, clear, and eX act description.

My invention relates' to a new and improved form'of axle nut.

An object of my invention is to provide lan axle nut which may be progressively fed on to the axle as the latter wears away, in order to take up end play.

A fiirtlier object of my invention is to provide a lock nut which may be adjustably positioned on the axle, and which may be locked in such position.

A further object of my invention is to provide washers in the nut, which washers may be removed when desired.

- I attain the above-outlined objects by disposing within a nut, a series of washers bearing against the end of the axle, which washers may be removed when wear occurs, and by making the pitch ot the threads of the axle equal to the thickness of these washer members, the Locking groove andpin will always be brought into alinement.

With the above and other objects in view, as will more fully hereinafter appear, the present invention consists'in certain novel details of construction and arrangement of parts hereinafter fully described,illustrated in the accompanying drawings, and more particularly pointed out in the appended claim.

Reference is to be had to the accompamy-Y ing drawings, forming a part of this speciication, inl which similar characters of reference indicate corresponding part-s in all the figures, and in'which Figure 1 is a transverse sectional view taken through a preferred embodiment of my invention; Fig. 2 is a side elevation of the inside of the nut, said nut being dismounted from the axle; Fig. 3 isa vieur similar to Fig. 1, showing a modified form of nut; Fig. 4 is a transverse sectional view taken on the line 4-4 of Fig. 3 and looking in the direction of the arrow; and Fig. 5 is an outside end elevation of the nut shown in Fig. 3.

Specification of ALetters Patent.

Patented Jan. 16, 1912.

Described more in detail, I have shown a shaft 6 of any common construction, projecting from one end of which is a threaded portion 7, whichportion Jf'orms with the end of the shaft 6, a shoulder 8. Surrounding the shaft 6 is any'preferred form of boxing 9. Mounted upon the portion 7 and in screw-threaded engagement therewith, is a nut 10, which nutis preferably of a diameter slightly greater than the diameter of the boxing 9, so as to form a 'flat inner bearing surface 11 adapted to lit flush against the end of the boxing 9.

Concentric with the portion 7, the inner bearing surface 11 is countersunk, as shown `at 12, which countersunk portion has a diameter equal to the diameter of the shaft 6. Disposed in the countersunk portion 12, surrounding the portion 7 and bearing against the shoulder 8 and the shaft 6, is a series of washers 13, preferably of metal', which washers are held in place by a series of screwthreaded pins 14 passing' through the washers and each of said pins engaging in a screw-threaded aperture 15 extending from the bottom of the countersunk portion 12 down into t-he body of the nut 10 a distance at least'as great as the thickness: of the combined series of washers. ltwill be seen that by this arrangement as washer after washer is taken off and the pins 14 reinserted into the apertures A15, the pins will be free to move into the apertures, so that the heads of 'the pins will be flush with the outer surface of the outermost washer or ring, which will permit the nut 10 to ride on to the axle ,6, as shown at 16 in Fig. 8, as the boxing'9 wears away. This will always keep the nut in close contact with the boxing 9 and will keep the shoulder 8 in iirm contact with the nut 10.-

In numerous instances, as, for instance, automobile construction, it is desirable to lock the nut to the axle, in which case one side of the threaded portion 7 is longitudinally grooved, as shown at 17, in which groove is inserted the shank 1S of a screwthread headed pin 19, which pin is in screwers 13, so that inrembving a washer and screwing the nut 10 up on the portion 7, the groove 17 and shank 18 will be brought into alinement, irrespective of the number of washers removed. This will always aord a tight, firm connection betweenthe several members. 4

Many changes could be made the above construction and many apparently widely diliterent embodiments -of this invention could be made without departing from the scope thereof. It is intended that all mat` ters contained herein in the above descripments of the scope of the invention, which,

as a matterof language, mightbe said to fall therebetween, and that materials, sizes and relativities of arts are non-essential, except as called for 1n the claim.

Having thus described my invention, I

claim as new and desire to secure by Letters Pat-ent:

In combination, an axle having', a screwthreaded portion extending from' one end thereof, a nut in screw-threaded engagement with said portion, said nut having a coun- `tersnnk portion adjacent said axle, a series of washers disposed in saidcountersunk portion, bearing against the end of said axle, the pitchof the threads on said portion being equal to the thickness of each of said washers, said portion having a longitudinal slot in the side thereof adjacent its outer end, and a pin carried by said nut engaging said slot, whereby as the washers are removed in succession, one rotation of the nut on the portion will bring said pin and slot in alinement to lock the nut in position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing' witnesses.

LARKIN BECK.

Witnesses H. B. SAMMONS, J. vH. GRAHAM. 

